Enginetech ST15621 Hi-Chrome Engine Valve Seat

The Enginetech ST15621 is a precision-manufactured engine valve seat designed for use in intake and exhaust applications across a range of domestic engines, including Ford, GM, and IHC Navistar platforms. Constructed from hi-chrome cast iron, this valve seat delivers superior hardness and wear resistance, making it an ideal choice for engine rebuilds requiring OEM-level quality and long-term durability.

Valve seats are critical cylinder head components that provide a sealing surface for the intake and exhaust valves. A worn or damaged seat leads to compression loss and reduced engine performance, making proper replacement essential during any head rebuild or engine overhaul.

Key Specifications:

• Inside Diameter (ID): 1.313 in.
• Outside Diameter (OD): 1.567 in.
• Thickness/Depth: 0.219 in.
• Seat Angle: 45 degrees
• Material: Hi-Chrome Cast Iron
• Application: Intake & Exhaust (including LPG applications)
• Pack Quantity: 4 seats per pack

Cross-Reference Part Numbers:

• Elgin: I1562125219
• Qualcast: 20-1562-1
• SB International: SB1562-1
• Federal Mogul: 24515621

Enginetech has been supplying professional engine rebuilders with high-quality internal engine components since 1982. All Enginetech products are manufactured in facilities operating under ISO, QS, and TS quality systems, ensuring consistent dimensional accuracy and material integrity across every part.